Chapter 10.3 Notes What other objects can be seen in the sky?

1. Star- A huge ball of superheated gases 2. Sun- The star at the center of our solar system 3. Constellation- A pattern of stars that form an imaginary picture or design in the sky 4. Galaxy- A huge system of many stars, gases, and dust. 5. Universe- Everything that exists in space. 6. Why is the sun important to people on Earth? The sun is the source of most energy on Earth, and it is essential for life. 7. What is the sun made of? Mostly hydrogen and helium gases 8. What does a stars color tell about the star? How hot it is.

9. Which color star is the hottest? Which is the coolest? Blue is the hottest and red the coolest 10. Where does that place our sun in the range of heat? Middle 11. What are the stages in the stars existence? 1st-spinning clouds of dust and gas, 2nd- a squeezed together mass, 3rd- a change of the mass into heat energy and light 12. What are the two ways in which people classify groups of stars? as constellations and as galaxies 13. Why do stars in the sky look different at times? The place where the Earth is in space changes from season to season, so the view of the stars we have changes. 14. Which best describes the sun A medium size star.